In "Sonic Riders: Zero Gravity," players can unlock the Chaos Emerald gear for Sonic to wear during gameplay. When Sonic puts it on he is transformed into Super Sonic -- a spikier, gold-furred, faster and more powerful version of his previous self. As Super Sonic he can defeat any enemy, but is incapable of racing and using spring-boards. Super Sonic consumes double the amount of rings as his regular mode, making it hard to wear the Chaos Emerald for very long before dying.
Instructions
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1
Select "Story Mode" in the game's main menu.
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2
Select Sonic as the character you will be racing as.
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3
Achieve a ranking of "X" in each of the 12 missions of Story Mode. After this, the Chaos Emerald gear will be unlocked, and available for Sonic to use.